GENERAL ANATOMY
ANATOMY OF THE HEART
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ventricular depolarization.
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ventricular contraction.
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atrial repolarization.
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atrial depolarization.
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Detailed explanation-1: -The QRS complex represents the depolarization of ventricles. It shows the beginning of systole and ventricular contraction. The QRS complex or wave starts with a small deflection downwards, represented by the point Q. It follows the P wave.
Detailed explanation-2: -The three waves of the QRS complex represent ventricular depolarization.
Detailed explanation-3: -The P wave and PR segment is an integral part of an electrocardiogram (ECG). It represents the electrical depolarization of the atria of the heart.
Detailed explanation-4: -The QRS wave represents ventricular depolarization. The T wave follows the QRS complex and indicated repolarization of the ventricles.
Detailed explanation-5: -The T wave on the ECG (T-ECG) represents repolarization of the ventricular myocardium. Its morphology and duration are commonly used to diagnose pathology and assess risk of life-threatening ventricular arrhythmias.